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!!这里有一个隐秘的trend,就是有一些maxpop和medpop很高,但是min——pop极低的专辑,这说明有些专辑内部pop方差很大(虽然大部分不是这样)。
## [1] "id" "Metacritic_Score" "Rank"
## [4] "Album_Name" "Singer" "Release_Date"
## [7] "Desciption" "Release_Year" "RYM_Rating"
## [10] "Genres" "Language" "Tracks"
## [13] "Colorscheme" "RYM_Rank" "Num_of_RYM_Ratings"
## [16] "avg_pop" "max_pop" "min_pop"
## [19] "med_pop" "n" "Fct_Release_Year"